along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/config.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/err.h>
+#include <linux/slab.h>
#if 0
#define DEBUGP printk
#define DEBUGP(fmt, a...)
#endif
-static inline int dash2underscore(char c)
+static inline char dash2underscore(char c)
{
if (c == '-')
return '_';
while (*args) {
int ret;
+ int irq_was_disabled;
args = next_arg(args, ¶m, &val);
+ irq_was_disabled = irqs_disabled();
ret = parse_one(param, val, params, num, unknown);
+ if (irq_was_disabled && !irqs_disabled()) {
+ printk(KERN_WARNING "parse_args(): option '%s' enabled "
+ "irq's!\n", param);
+ }
switch (ret) {
case -ENOENT:
printk(KERN_ERR "%s: Unknown parameter `%s'\n",
#define STANDARD_PARAM_DEF(name, type, format, tmptype, strtolfn) \
int param_set_##name(const char *val, struct kernel_param *kp) \
{ \
- char *endp; \
tmptype l; \
+ int ret; \
\
if (!val) return -EINVAL; \
- l = strtolfn(val, &endp, 0); \
- if (endp == val || ((type)l != l)) \
+ ret = strtolfn(val, 0, &l); \
+ if (ret == -EINVAL || ((type)l != l)) \
return -EINVAL; \
*((type *)kp->arg) = l; \
return 0; \
return sprintf(buffer, format, *((type *)kp->arg)); \
}
-STANDARD_PARAM_DEF(byte, unsigned char, "%c", unsigned long, simple_strtoul);
-STANDARD_PARAM_DEF(short, short, "%hi", long, simple_strtol);
-STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", unsigned long, simple_strtoul);
-STANDARD_PARAM_DEF(int, int, "%i", long, simple_strtol);
-STANDARD_PARAM_DEF(uint, unsigned int, "%u", unsigned long, simple_strtoul);
-STANDARD_PARAM_DEF(long, long, "%li", long, simple_strtol);
-STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, simple_strtoul);
+STANDARD_PARAM_DEF(byte, unsigned char, "%c", unsigned long, strict_strtoul);
+STANDARD_PARAM_DEF(short, short, "%hi", long, strict_strtol);
+STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", unsigned long, strict_strtoul);
+STANDARD_PARAM_DEF(int, int, "%i", long, strict_strtol);
+STANDARD_PARAM_DEF(uint, unsigned int, "%u", unsigned long, strict_strtoul);
+STANDARD_PARAM_DEF(long, long, "%li", long, strict_strtol);
+STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, strict_strtoul);
int param_set_charp(const char *val, struct kernel_param *kp)
{
int param_set_invbool(const char *val, struct kernel_param *kp)
{
int boolval, ret;
- struct kernel_param dummy = { .arg = &boolval };
+ struct kernel_param dummy;
+ dummy.arg = &boolval;
ret = param_set_bool(val, &dummy);
if (ret == 0)
*(int *)kp->arg = !boolval;
int param_get_invbool(char *buffer, struct kernel_param *kp)
{
- int val;
- struct kernel_param dummy = { .arg = &val };
-
- val = !*(int *)kp->arg;
- return param_get_bool(buffer, &dummy);
+ return sprintf(buffer, "%c", (*(int *)kp->arg) ? 'N' : 'Y');
}
-/* We cheat here and temporarily mangle the string. */
-int param_array(const char *name,
- const char *val,
- unsigned int min, unsigned int max,
- void *elem, int elemsize,
- int (*set)(const char *, struct kernel_param *kp),
- int *num)
+/* We break the rule and mangle the string. */
+static int param_array(const char *name,
+ const char *val,
+ unsigned int min, unsigned int max,
+ void *elem, int elemsize,
+ int (*set)(const char *, struct kernel_param *kp),
+ unsigned int *num)
{
int ret;
struct kernel_param kp;
int param_array_set(const char *val, struct kernel_param *kp)
{
- struct kparam_array *arr = kp->arg;
+ const struct kparam_array *arr = kp->arr;
unsigned int temp_num;
return param_array(kp->name, val, 1, arr->max, arr->elem,
int param_array_get(char *buffer, struct kernel_param *kp)
{
int i, off, ret;
- struct kparam_array *arr = kp->arg;
+ const struct kparam_array *arr = kp->arr;
struct kernel_param p;
p = *kp;
int param_set_copystring(const char *val, struct kernel_param *kp)
{
- struct kparam_string *kps = kp->arg;
+ const struct kparam_string *kps = kp->str;
+ if (!val) {
+ printk(KERN_ERR "%s: missing param set value\n", kp->name);
+ return -EINVAL;
+ }
if (strlen(val)+1 > kps->maxlen) {
printk(KERN_ERR "%s: string doesn't fit in %u chars.\n",
kp->name, kps->maxlen-1);
int param_get_string(char *buffer, struct kernel_param *kp)
{
- struct kparam_string *kps = kp->arg;
+ const struct kparam_string *kps = kp->str;
return strlcpy(buffer, kps->string, kps->maxlen);
}
extern struct kernel_param __start___param[], __stop___param[];
-#define MAX_KBUILD_MODNAME KOBJ_NAME_LEN
-
struct param_attribute
{
struct module_attribute mattr;
struct param_attribute attrs[0];
};
+#ifdef CONFIG_SYSFS
#define to_param_attr(n) container_of(n, struct param_attribute, mattr);
static ssize_t param_attr_show(struct module_attribute *mattr,
return len;
return err;
}
+#endif
#ifdef CONFIG_MODULES
#define __modinit
#define __modinit __init
#endif
+#ifdef CONFIG_SYSFS
/*
* param_sysfs_setup - setup sysfs support for one module or KBUILD_MODNAME
* @mk: struct module_kobject (contains parent kobject)
sizeof(mp->grp.attrs[0]));
size[1] = (valid_attrs + 1) * sizeof(mp->grp.attrs[0]);
- mp = kmalloc(size[0] + size[1], GFP_KERNEL);
+ mp = kzalloc(size[0] + size[1], GFP_KERNEL);
if (!mp)
return ERR_PTR(-ENOMEM);
pattr->mattr.show = param_attr_show;
pattr->mattr.store = param_attr_store;
pattr->mattr.attr.name = (char *)&kp->name[name_skip];
- pattr->mattr.attr.owner = mk->mod;
pattr->mattr.attr.mode = kp->perm;
*(gattr++) = &(pattr++)->mattr.attr;
}
return mp;
}
-
#ifdef CONFIG_MODULES
-
/*
* module_param_sysfs_setup - setup sysfs support for one module
* @mod: module
unsigned int name_skip)
{
struct module_kobject *mk;
+ int ret;
mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL);
BUG_ON(!mk);
mk->mod = THIS_MODULE;
- kobj_set_kset_s(mk, module_subsys);
- kobject_set_name(&mk->kobj, name);
- kobject_register(&mk->kobj);
-
- /* no need to keep the kobject if no parameter is exported */
- if (!param_sysfs_setup(mk, kparam, num_params, name_skip)) {
- kobject_unregister(&mk->kobj);
- kfree(mk);
+ mk->kobj.kset = module_kset;
+ ret = kobject_init_and_add(&mk->kobj, &module_ktype, NULL, "%s", name);
+ if (ret) {
+ kobject_put(&mk->kobj);
+ printk(KERN_ERR "Module '%s' failed to be added to sysfs, "
+ "error number %d\n", name, ret);
+ printk(KERN_ERR "The system will be unstable now.\n");
+ return;
}
+ param_sysfs_setup(mk, kparam, num_params, name_skip);
+ kobject_uevent(&mk->kobj, KOBJ_ADD);
}
/*
{
struct kernel_param *kp, *kp_begin = NULL;
unsigned int i, name_len, count = 0;
- char modname[MAX_KBUILD_MODNAME + 1] = "";
+ char modname[MODULE_NAME_LEN + 1] = "";
for (i=0; i < __stop___param - __start___param; i++) {
char *dot;
+ size_t max_name_len;
kp = &__start___param[i];
+ max_name_len =
+ min_t(size_t, MODULE_NAME_LEN, strlen(kp->name));
- /* We do not handle args without periods. */
- dot = memchr(kp->name, '.', MAX_KBUILD_MODNAME);
+ dot = memchr(kp->name, '.', max_name_len);
if (!dot) {
- DEBUGP("couldn't find period in %s\n", kp->name);
+ DEBUGP("couldn't find period in first %d characters "
+ "of %s\n", MODULE_NAME_LEN, kp->name);
continue;
}
name_len = dot - kp->name;
/* module-related sysfs stuff */
-#ifdef CONFIG_MODULES
#define to_module_attr(n) container_of(n, struct module_attribute, attr);
#define to_module_kobject(n) container_of(n, struct module_kobject, kobj);
if (!attribute->show)
return -EIO;
- if (!try_module_get(mk->mod))
- return -ENODEV;
-
ret = attribute->show(attribute, mk->mod, buf);
- module_put(mk->mod);
-
return ret;
}
if (!attribute->store)
return -EIO;
- if (!try_module_get(mk->mod))
- return -ENODEV;
-
ret = attribute->store(attribute, mk->mod, buf, len);
- module_put(mk->mod);
-
return ret;
}
.store = module_attr_store,
};
-#else
-static struct sysfs_ops module_sysfs_ops = {
- .show = NULL,
- .store = NULL,
+static int uevent_filter(struct kset *kset, struct kobject *kobj)
+{
+ struct kobj_type *ktype = get_ktype(kobj);
+
+ if (ktype == &module_ktype)
+ return 1;
+ return 0;
+}
+
+static struct kset_uevent_ops module_uevent_ops = {
+ .filter = uevent_filter,
};
-#endif
-static struct kobj_type module_ktype = {
+struct kset *module_kset;
+int module_sysfs_initialized;
+
+struct kobj_type module_ktype = {
.sysfs_ops = &module_sysfs_ops,
};
-decl_subsys(module, &module_ktype, NULL);
-
/*
* param_sysfs_init - wrapper for built-in params support
*/
static int __init param_sysfs_init(void)
{
- subsystem_register(&module_subsys);
+ module_kset = kset_create_and_add("module", &module_uevent_ops, NULL);
+ if (!module_kset) {
+ printk(KERN_WARNING "%s (%d): error creating kset\n",
+ __FILE__, __LINE__);
+ return -ENOMEM;
+ }
+ module_sysfs_initialized = 1;
param_sysfs_builtin();
return 0;
}
-__initcall(param_sysfs_init);
+subsys_initcall(param_sysfs_init);
+
+#endif /* CONFIG_SYSFS */
EXPORT_SYMBOL(param_set_byte);
EXPORT_SYMBOL(param_get_byte);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff